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MPPT150 / 70A solar charge controller works normally in 12V voltage system, but when switching to 48V voltage system and using lead-acid battery, it can't enter "absorption" or "flow" mode. What's the reason?

MPPT150 / 70A solar charge controller works normally in 12V voltage system, but when switching to 48V voltage system and using lead-acid battery, it can't enter "absorption" or "flow" mode. What's the reason?

2021-01-28

Hello, because the voltage value has been changed, the solar controller mppt150 / 70A can not use the "absorption" or "float" modes. It may be that the solar panel voltage is not enough, or the solar panel power is not enough, which may lead to the failure to use.


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